package com.itheima.mapper;

import com.itheima.pojo.Emp;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.time.LocalDate;
import java.util.List;

@Mapper
public interface EmpMapper {

//    /**
//     * 查询总记录数
//     * @return
//     */
//    @Select("select count(*) from emp")
//    public Long count();

//    /**
//     * 分页查询,获取列表数据
//     *
//     * @param start
//     * @param pageSize
//     * @return
//     */
//    @Select("select * from emp limit #{start},#{pageSize}")
//    public List<Emp> page(Integer start, Integer pageSize);


    //使用page分页插件查询
    //@Select("select * from emp ")

    List<Emp> list(String name, Short gender, LocalDate begin, LocalDate end);


//批量删除
    void delete(List<Integer> ids);


    //新增员工
    @Insert("insert into emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time)"+
            "values(#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})"
    )
    void insert(Emp emp);


    //根据id查询员工
    @Select("select * from emp where id=#{id}")
    Emp getById(Integer id);


    //更新员工

    void update(Emp emp);

    //根据用户名和密码查询员工
    @Select("select * from emp where username=#{username} and password=#{password}")
    Emp getByUsernameAndpassword(Emp emp);

    //根据部门id删除员工数据
    @Delete("delete from emp where dept_id=#{deptId}")
    void deleteByDeptId(Integer deptId);
}
